View source for How to Verify the Terminal's Printer Status

* Make sure the paper roll conform to paper roll standard:
** Paper width: 57.5+/-0.5mm
** Outer diameter
*** Q1: 30mm
*** POS1V2: 40mm
*** Q2: 40mm
*** Q1V2: 30mm
* Make sure the paper roll insert correct, here is a picture in Q2：
[[File:Paperrollposition.png|frameless|thumb|caption]]
* Test using Merchant Self Test
Click Settings>About POS>POS Configuration>Merchant Self Test>Printer, when success, it will print a receipt.
* Still can not work, send log to the person you contact.